\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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\(\pi\)
e
\(\frac{a}{b}\)
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
7
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9
\(\div\)
log
ln
4
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\(\times\)
cos
cos⁻¹
1
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-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
During a sale, a shop offers a \(50\pourcent\) discount on all items. By what percentage must the sale price be increased to return to the original price?
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